Garmin APOLLO GX SERIES, Service Manual

Page: 19 / 166

Garmin AT Rev --
© 2004 Garmin AT GX Service Manual 2-7
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Automatic waypoint sequencing
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Vectors to final input (GX50/60 only)
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DME arc assist
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Built-in simulator for trip planning and training
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User definable navigation pages with auto sequencing
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30 reversible flight plans of up to 20 legs with automatic sequencing
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500 user waypoints created by lat/lon or by radial/distance from a reference waypoint
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Real time clock (time and date) in UTC
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Countdown timer
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Flight timer
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Automatic or manual magnetic variation
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Parallel track offset
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Alerts for -
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Loss of navigation data
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Arrival at waypoint
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Special use airspace
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Full range (10 VDC to 40 VDC) input supply voltage
GPS Receiver Performance Specifications
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8-channel parallel GPS receiver
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Frequency: 1575.42 MHz L1, C/A code
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Sensitivity (acquisition): -135 dBm
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Sensitivity (drop lock): -142 dBm
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Dynamic range: >20 dB
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Lat/Lon position accuracy
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15 meters RMS accuracy
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25 meters, SEP, without SA
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100 meters 2 DRMS with SA
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Velocity: 999 knots maximum
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Acceleration: 4G maximum
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TTFF (time to first fix)
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25 sec. (typical) with current almanac, position, time, and ephemeris
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55 seconds typical with current almanac, position, & time
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Reacquisition: 2.5 seconds typical
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Position update interval: 1 second typical
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Datum: WGS-84